Process and apparatus for recharging magnets



. n tomobile 40 apparatus,

55 top of the casm'g,

"Patented July UNITED' S-TTES mvsrm v. merr, or `m'merr, mesuesit; i

..rnocnss .urn APPARAEUS ronfarsimimin& !Asmara Application filed naj 24, 19136.` Serial na. 111449.

My invention relates to improvements in a 'rocess and apparatus forrechargng ,mag-

ne s especially those magnets that form part of magnetos, and it consists in the steps herei inafter disclosed and in the apparatus for j carryin out the same. O. An o ject of my'invention is to provide a process of recharging weakmagnets of magnetos 'such as. that used in the Ford auwithout the necessity of removing the magnets or c'oils. v i A. further ob'ect of my invention is to provide a process for recharging magnets of magnetos of the type while the parts are 15 in their normal position by the use of alternating current which during thecharging process may demagnetize the magnets thereby permitting them to dropany magnetiz'- able particles which may have caused a 2 short-circuit, and of subsequently recharging the magnets'to their fu1lcapacity'.'

A further object .is to provide. a recharging process which when the connections have been made may be carried out almost in- 2 stantly and at a minimum cost of. electrical energy. V

A further object is to provide a novel form of apparatus for makingthe connections by means of which the process may be carried out and for testing the apparatus after the operation has been completed.

Otherobjects and advantages will appear in the following specification, and the novel features of the invention will be particularly pointed out in the appendd claims.

My invention is illustrated in the accompanying 'drawings, forming part of this application, in which e Figure 1 is a plan View of a portion of the Figure 2 is a sectional view on the line '2-2 of Figure 1, and

. Fi ure 3 is a diagrammatical View ing t e circuit connections.

'n carrying out m 'a casing 1 which may made of Wood, hard rubberf or other suitable material. Dis'- posed in the top of the casing is a volt-meter 2 of the alternating current type such as is to used in connection with the testin of the magnetos of Ford automobiles.

meter is connected to the of the plu A secon as shown in'Figurel.

.lug

One terminal of this plug member is 'connected' through a resstance -the magnets and thus dissipating the'char Vexcessive flow of current.

fastened to one end of-the coil' as at 19.." This show invention I 'provide a nets completel t is, of course, i that the secon contact will-catch t e same j socket member 3 member 4: is carried by the suflicientto `recharge the magnets snce in a' `fewtria1s I have ;found that the magnets 5 with a spring clip 6, the other terminal being connected through a resistance 7 with a spring clip 8. The male member 9 of the plug has one terminal 10 connected with a spring clip 11, the other terminall being connected to a, conducting bar or rod 13 carred by an insulating handle 14. c

From the foregoing descri tion of the varous parts of the device, t e operation ,thereof may be readily understood. Let us u assume that the generating circuit of'a Ford automobile has deteriorated through" the losing of a charge by the' magnets of the magnetoand further that somemagnetizable conducting particlare being held by e. In Figure 3 I have shown diagrammatica ly the arrangement of the magnets M as they occur in the Ford magneto. The coils C are shown disposed their relation with the magnets;

In using the apparatus, the plugmember 9 is first connected to the plug member 4. The spring clips ;6 and 8 are connected to V the conductors 15 and 16 'which lead from the line wires 17 and 18 respectivel The voltage used is preferably 220 volts although it may' be more for season explainedlater. The resistances 5 and 7-are used 'to prevent may be at a terminal on the dash.- As long as 'the conductor 13 is not grounded, nocurrent will flow, but on touching the end ot the conductor 13 to ground, such -as to e radiator, fender, or other portion of the au tomobile, alternating current will 0 flow u through the 'coils C. Now I' have found that in practice all; that is necessar is to make quick taps or contacts of the en of the conductor 13 in order to recharge the nagnets to their full capacity." -Apparently ,f such contact -is made when" the wave of the current s 'such as to, demag netize themag-` nets, this will occur,` and any' mgnetizable material which is, being-held b the magnets will be loosened an the' magnets and i shortcontact orta will recharge themassib part of the alternatingcurrent wave that the first 'onc did, but a ew taps'is generally will be'charged to their full capacity.

The clip #11; is

will'fa away from` the coils; 'A subsequent In order to test whether the chargng operation has been successful, itis on y necessary to withdraw the pl'ug member 9 and insert it in the plug ,member 3. Now by grounding the end of the conductor 13 the volt-meter should register a full voltage for a Ford magneto,- thus indicating that the magnets have been restored V to their full stren h.

It s entirel ssible to rechar'ge-the magnets to a wor a le strength at a lower'voltage than 220, but I prefer 220 as stated since this has proved to be in practice the most satisfactory voltage.

It will be understood, ofvcourse that the short contact or tap may notfpermit such current to flow asmi ht be permitted by a longer contact, but I ave found that even where there is a lon ir. contact;so that "the magnets are being c arged and dischar ed v rapdly' by the alternating current the e ect is substantially the same'as othe momentary' contact. Since the momentary contact closure of the circuit works as well as a pro-' longed closure, ;I find that the work of charging the magnets maybe done in a very may be almost instantly rejuvenated cranking o the magneto either by hand or i be done.

short time. In some' instano'es, prolonged closure of the circuit may be inj'rous to the coils where a momentary connection is not injurious. Thus in many cases a ma eto' a few ta of the conductng member 13 o a' bun ed portion of the automobile. Durin t is time the magnetsmay be de-energiz to drop any ma cause a short-'circuit and may be re-energized to 'their' full capaci so that all that s necessa is to start e engine by the arthe current will-tend to increase 'the magnetisms By the use of the curgnetizable particles that may easily carrie by rent the magnetism is decreased, thus permitting the magnets to discharge any magnetizable material which may have adhered to them and then to recharge the mag'ets. This of course is not done where a direct current is used in the coils.

I'n additionto the advantages above nuthe short-circuit and thus eliminating the short-circuit and restoring the circuit to nor mal through the coils. i Another feature to which I'desire to call attention is the fact that if inbling charged magnets of a magneto of the' Ford ty one should 'inadvertentl lace north po es where sou th poles sh d he need not disassemble the parte, but he can proceed to finish the devce and the glarity of the ma ets can be reversed by e process set tfort above. Furthermore, this can be done almost instantly.

' I l f i f 1. a process o arging magnets o magtos of the Ford type the heroin descri steps which consst in passing through the field coil circuit an impulse from an alternating current to de-energize the magnets, and s'bsequently passing an impulse from the same' alternating current to energize the magnets. I

4 2. In .a process' of rechargin magnets of ma etos of the Ford type, t e heroin descr d steps which consst in assing through the field .coil circuit which as be-' come grounded an alternatin current of a voltage considerably higher t an that given out by the magneto, whereby the grounding connection is burned out, and in subscquently passing an impulse from the same' alternatin 'current through the coils to restore the c argeof the magnets.

'SYLVESTEB v. LOSEY. 

